{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["concept or principle", "engineering feature", "manufacturing standard", "manufacturing process", "enabling technology", "biomedical"], "input": "Existing literature that reports current data on fracture toughness and fatigue crack growth tests conducted on AM parts is summarised and analysed , highlighting different steel grades and applications , with the view to illustrating the requirements for the new optimised functionally graded structures in offshore wind structures by means of AM technique ."}
{"concept or principle": ["data", "fracture", "fatigue crack growth"], "engineering feature": ["functionally graded structures"], "manufacturing standard": [], "manufacturing process": ["AM technique"], "enabling technology": [], "biomedical": []}